Is YouTube Making Us… Smarter?

Anybody who's been to YouTube quickly becomes cynical about the future of the human race, particularly when you read the comments to... well... any video. But this PBS video argues that YouTube actually makes you smarter by lowering barriers to learning about literally any topic. And we have to admit, they've got a point. There are all sorts of educational videos on YouTube. Of course, there are also videos like this:

So maybe this isn't entirely true.